A046230 First denominator and then numerator of elements to right of central elements of 1/2-Pascal triangle (by row), excluding 2's.

1, 1, 1, 1, 3, 1, 1, 5, 1, 1, 11, 7, 1, 1, 1, 9, 9, 1, 1, 1, 20, 27, 11, 1, 1, 67, 1, 19, 13, 1, 1, 147, 105, 51, 15, 1, 1, 1, 126, 1, 78, 1, 33, 17, 1, 1, 1, 273, 1, 204, 1, 111, 83, 19, 1, 1, 1, 477, 1, 315, 305, 1, 51, 21, 1, 1, 1, 1023, 1, 792, 935, 407, 123, 23, 1, 1, 1, 1815

Offset: 1

Author

Mohammad K. Azarian

Keywords

• tabf
• nonn

Examples

			1/1; 1/1 1/1; 1/1 1/2 1/1; 1/1 3/2 3/2 1/1; 1/1 5/2 3/1 5/2 1/1; 1/1 7/2 11/2 11/2 7/2 1/1; 1/1 9/2 9/1 11/1 9/1 9/2 1/1; 1/1 11/2 27/2 20/1 20/1 27/2 11/2 1/1; ...
		

Crossrefs

Cf. A046213.

Extensions

More terms from James Sellers, Dec 13 1999